Buttress Film With Hemostatic Action For Surgical Stapling Apparatus

• US 20120187179A1
• Filed: 01/26/2011
• Published: 07/26/2012
• Est. Priority Date: 01/26/2011
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Gleiman, Seth S.
• Granted Patent: US 9,084,602 B2
• Time in Patent Office: Days
• US Class Current: 227/176.1
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 17/072 for applying a row of staples in a single action , e.g. the staples being applied simultaneously
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 2017/00889 antimicrobial, disinfectant
• CPC Class Codes: A61B 2017/00951 adhesive
• CPC Class Codes: A61B 2017/07271 characterised by its cartridge

Abstract

A surgical stapling apparatus includes a jaw assembly including a pair of jaw members and a surgical buttress positioned adjacent a tissue contacting surface of at least one of the pair of jaw members. The surgical buttress includes a hemostatic agent and is configured to release the hemostatic agent therefrom upon actuation of the surgical stapling apparatus to approximate the pair of jaw members and exert a pressure on the surgical buttress.

Claims

1. A surgical stapling apparatus, comprising:

a jaw assembly including a pair of jaw members; and

a surgical buttress positioned adjacent a tissue contacting surface of at least one of the pair of jaw members, the surgical buttress comprising a hemostatic agent and being configured to release the hemostatic agent therefrom upon actuation of the surgical stapling apparatus to approximate the pair of jaw members and exert a pressure on the surgical buttress.

2. The surgical stapling apparatus of claim 1, wherein the surgical buttress includes a plurality of microbeads each having a polymeric casing defining a core containing the hemostatic agent therewithin.

3. The surgical stapling apparatus of claim 2, wherein the polymeric casing is fabricated from a bioabsorbable material.

4. The surgical stapling apparatus of claim 2, wherein the microbeads are about 0.01 mm to about 3.0 mm in diameter.

5. The surgical stapling apparatus of claim 2, wherein the microbeads are less than about 1.0 mm in diameter.

6. The surgical stapling apparatus of claim 2, wherein the microbeads are configured in a shape selected from the group consisting of spherical, ellipsoid, elongated ellipsoid, capsule, and combinations thereof.

7. The surgical stapling apparatus of claim 1, wherein the hemostatic agent is disposed within the surgical buttress in a non-solid state.

8. The surgical stapling apparatus of claim 1, wherein the hemostatic agent is freely admixed with a polymer forming the surgical buttress.

9. The surgical stapling apparatus of claim 1, wherein the hemostatic agent is tethered to a polymer forming the surgical buttress.

10. The surgical stapling apparatus of claim 1, wherein the hemostatic agent is disposed within reservoirs formed within the surgical buttress.

11. The surgical stapling apparatus of claim 10, wherein the surgical buttress further comprises a sealant, the surgical buttress being configured to release the sealant upon actuation of the surgical stapling apparatus to approximate the pair of jaw members and exert a pressure on the surgical buttress.

12. The surgical stapling apparatus of claim 10, wherein the surgical buttress further comprises a bioactive agent, the surgical buttress being configured to release the bioactive agent upon actuation of the surgical stapling apparatus to approximate the pair of jaw members and exert a pressure on the surgical buttress.

13. The surgical stapling apparatus of claim 1, wherein the surgical buttress includes a first layer containing the hemostatic agent and a second layer of non-porous material positioned adjacent to the first layer.

14. The surgical stapling apparatus of claim 13, wherein the surgical buttress further comprises a third layer of porous or non-porous material positioned adjacent to the first layer.

15. A surgical stapling apparatus, comprising:

a jaw assembly including a staple forming anvil jaw member and a staple cartridge jaw member;

a trigger for actuating the jaw assembly between an open position where the anvil jaw member and the staple cartridge jaw member are spaced apart from one another and a closed position where the anvil jaw member and the staple cartridge jaw member are substantially adjacent to one another and for applying at least one row of staples to tissue when the jaw assembly is in the closed position; and

a surgical buttress positioned adjacent a tissue contacting surface of at least one of the anvil jaw assembly or the staple cartridge jaw assembly, the surgical buttress containing a hemostatic agent and being configured to release the hemostatic agent subsequent to actuation of the trigger and approximation of the jaw assembly to the closed position.

16. The surgical stapling apparatus of claim 15, wherein when the jaw assembly is disposed in the closed position about 10% to about 95% of the hemostatic agent is released.

17. The surgical stapling apparatus of claim 15, wherein when the jaw assembly is disposed in the closed position about 70% to about 90% of the hemostatic agent is released.

18. The surgical stapling apparatus of claim 15, wherein the hemostatic agent is released in response to a compressive force of the jaw assembly against tissue positioned between the anvil jaw member and the staple cartridge jaw member.

19. The surgical stapling apparatus of claim 15, wherein the hemostatic agent is released upon passage of a staple from a staple cartridge loaded in the staple cartridge jaw member through the surgical buttress.

20. A staple cartridge, comprising:

a staple cartridge containing a plurality of staples for use in a surgical stapling apparatus; and

a surgical buttress disposed on a tissue contacting surface of the staple cartridge and being releasably affixed to the staple cartridge, the surgical buttress comprising a layer of polymeric material including a hemostatic agent and being configured to release the hemostatic agent therefrom upon application of pressure thereto.

21. The staple cartridge of claim 20, wherein the surgical buttress includes a plurality of microbeads each having a polymeric casing defining a core containing the hemostatic agent therewithin.

22. The staple cartridge of claim 21, wherein the microbeads are disposed within the layer of polymeric material.

23. The staple cartridge of claim 21, wherein the microbeads are disposed on a surface of the layer of polymeric material.

24. The staple cartridge of claim 20, wherein the surgical buttress further comprises a second layer of polymeric material adjacent the layer of polymeric material including the hemostatic agent.